Axle-skein.



No. 694","`63l. Patented Mar 4 |902 E. soon.

lAXLE SKEIN. (Application med Apr. 27,1901.)

(N0 Modal.)

UNITED fSTATES PATENT OFFICE..

EDGAR GOOD, OF KALAMAZOO, MICHIGAN, ASSIGNOR TO KALAMAZOO SPRING & AXLE COMPANY, OF KALAMAZOO, MICHIGAN, A CORPO- RATION OF MICHIGAN.

AXLE-SKEIN.

SPECIFICATION forming. part of Letters Patent No.l 694,631, dated March 4, 1902.

Application filed April 27, 1901. Serial No. 57,750. (No model.)

To all whom it may concern: y

Be it known that I, EDGAR GOOD, a citizen of the United States, residing at Kalamazoo, in the county of v Kalamazoo and State of Michigan, have invented certain new and useful Improvements in Axle-Skeins, of which the following is a speciication, reference being had therein to the accompanying drawings.

The invention relates to axle-skeins, and has for its object the obtaining of a skein in which a durable wearing-surface is combined, with a structure which materiallystrengthens the aXle.

Heretofore axle-skeins have beenv formed usually either entirely of cast vmetal or entirely of wrought metal and in some instances of a combination of cast and wrought metal. In these prior constructions where the skein is formed either whole or part of wrought metal the wearing-surface of the skein has proven less durable than the cast skeins. This is for the reason that there is usually a greater thickness of metal in thepwearing portion of the cast skein ythan can be used in the wrought skein without materially increasing its weight and cost. Moreover, eX- perience has demonstrated that cast metal has better Wearing qualities for thisparticular use than wrought metal. On the other hand, Where the skein is formed entirely of cast metal the structure is lacking in strength and is liable to fracture.

The present invention consists in the'peculiar construction of a composite skein in which the Wearing portion is formed of cast metal and thel structural portion,which is se- Y cured to the wooden axle, is formed ofv a comf bination of wrought and cast metal.

The invention further consists in the peculiar construction, arrangement, and com-V bination of parts, as hereinafter described and claimed.

In the drawings, Figure l is a longitudinal section through the axle-skein.' Fig. 2 is a cross-section on line x 0c, Fig. l. v

A is the wearing portion of the skein or that portion upon which the hub of the Wheel is journaled. This portion is of the usual tapering form and is formed entirely of cast metal. At its inner end it is provided With a shoulder B and a rearwardly-extending tubular shank C, which is also preferably of a tapering form.

D is the socket portion and tail of the skein, which forms the.V connection with the Wooden axle and which is of the usual form. This socket portion and tail is formed of wrought metal and is provided with a portion E,which is adapted to be shrunk upon the shank portion C of the cast section. At the inner end of the portion E is formed an enlargement F, which forms the ring or shoulder for the skein. y p

With the device as thus lconstructed when the tail and socket D is secured to the Wooden axle it willforxn a strong connection there'- with and one which is not liable to fracture. The portion E, surrounding the cast shank C, will strengthen the latter to resist any strains, and inasmuch 'as it is shrunk on the ltwo parts are as securely attached as if formed integral. The bearing portion A ofthe skein is not subject to as great strains as the inner portion, and thus the cast Inetal will be of sufficient strength,while the Wearing-surface is much morerdurable than with the all-v wrought construction.l

The term wrought metal as used in the specification and claims is intended to denote the inherent qualities of the material vforming one member which distinguishes it `from that forming the other and is not used lto designate the manner in which the member is formed. I therefore do not intend to 'be limited to the member which in its formation is actually Wrought, but only to one formed of metal havingt-he` essential characteristics of Wrought metal-viz., freedom' and having its inner end thickened to form m a collar adjacent to said Wearing portion.

In testimony whereof I ax my signature in presence of two witnesses.

EDGAR GOOD.

Witnesses:

DALLAS BOUDEMAN, DoNALDo BOUDEMAN. 

